Summer According to Humphrey (Humphrey Series #6)

When Humphrey hears that school is ending, he can't believe his ears. What's a classroom hamster to do if there's no more school? It turns out that Mrs. Brisbane has planned something thrilling for Humphrey and Og the frog: they're going to Camp Happy Hollow with Ms. Mac and lots of the kids from Room 26! Camp is full of FUN-FUN-FUN new experiences, but it's also a little scary. There are fur-raising wild sounds and smells, and there's something called the Howler to watch out for. Humphrey is…